Really?! Ooh, haven't given that a thought...
I have a cradle for my 4S coming with my 328i and the full iDrive with BMW Apps 6NR and the full works, save DAB radio. Hmm, time will tell! At least the iPhone is intelligent enough to shut itself down before it melts itself....
2006 BMW E60 520d SE 6MT
2009 BMW E90-LCI 330d SE 6MT
Current: 2012 F30 328i Luxury 8AT
2015 Audi A6 Avant Ultra, Black Edition (sorry!)